Pressure extractor



DCC. 19, 1933. W ASHER PRES SURE EXTRACTOR Dec. 19, 1933. w. J. ASHER PRESSURE EXTRACTOR Filed NOV. 27, 1931 2 Sheets-Sheet 2 Patented Dec. 1.9, 191:53y l c ,e

` UNITEDSTATESPATENT orrice William J. Asher, Colorado Springs, Colo.

Application November 27, 1931 seria1No.s77,c49

` `1c claims. (ci. 10o-so) This invention relates to pressure extractors sure extractor comprises essentially the power such as, for example, those of the type adapted or motor cylinder 10, the extractor cylinder 11, for use in laundry work for removing water or and the plunger`12.' In the collapsedV or retractother 'cleaning uid from articles of apparel ed position of the device, the parts occupy the and the like after they have been subjected to positions shown in this figure.A It will be under- 60 thewashing or cleaning process. stood that, in operation, the extractor cylinder Most of the devices heretofore' designed and 11 is partially withdrawn or extended from the constructed for this purpose havebeen of the power cylinder l andthe plunger l2 is adapted centrifugal typeV and have involved large and to reciprocate within both of the cylinders in l() bulky "installations,V The few extractors of the orderto compress'within the extractor cylinder 65 oped are of equallylarge dimensions and are which liquid is to be extracted. adapted only forcornmercial use'in'laundries or AThe DOWGT 0i' mOtOl Cylinder 10 iS DTOVded other cleaning establishments, with the cylindrical wall 15, the bottom wall orl The present invention, on the other hand, head-16, and the top h'ead whichis formed by 7o contemplates the provision of an extractor of the casting 17. 'Ihecylindrical'wall 15 and the the positive pressure type which is particularly' bottom i6 are preferably united by soldering adapted for usev in the household, where space and the head casting 17 maybe removably seis generally'ata premium and where the concured to the wall 15'as by means/of the Screws 20 servation thereof must be given consideration in 18. The head 17 of the power cylinder is prof` 75 the designing of any mechanical device or invided with the central opening 20 around the stallation for such use. margin of which is formed Athe raised portion 21 VIt is, therefore, one of the objects of the which is grooved as at 22 for a purpose to be invention to provide a collapsible pressure ex-` later described. 25 tractor for household use, the dimensions of 'I'he extractor cylinder 11 is adapted to t slid- 90 which may be reduced when it is not in actual ingly within the opening 20 and the complete use, so that it may be stored in a small space removal of the cylinder 11 is prevented by the until again required. ring 25 which is secured to thevlower end, as by Other and more specio objects of the inmeans of the fastening element 26, just above vention are the provision of novel and improved theoutwardly extending flange 27 formed at th 85 means for securing the parts of such extractors base of the extractor cylinder. in extended or retracted positions, for Vsecur- In 'order to secure the cylinder 11 in its exing the cover to the extractor chamber, for tended or retracted positions with respect to the controlling the application of the motive-fluid power cylinder 10, a split ring 30 is provided, the to the power cylinder ofthe extractor, and for two halves of which are adapted to closely em- 90 removing the extractedliquid from the device. brace the wall of the cylinder 11 as clearly Other objects and features of Vnovelty will shownV in Figure 4 of the drawings. The split be apparent from the following specification, ring 30 is provided with a lower inwardlyV diwhen read in connection with the accompanying rected fia-nge 31 which isv adapted to enterv the 40 drawings, in which one embodiment of my in-V groove 22 provided in theraised portion ,21 of 95 vention is illustrated by wayof example. the head 17 of the power cylinder. The two In the drawings: Y halves of thesplit ringj30 are also provided with Figure 1 is a vertical central cross sectional the perforated lugs 32 through which the bolts view of a pressure extractor embodying the 33 are adapted to extend; Upon one end of each principles `of the invention; the parts being of the bolts 33 there is provided a nut 34 which V100 shown in retracted or collapsed position; is prevented from turning vrelatively to the rings Figure 2 is a top plan view of the extractor; 30 by means 'of a shoulder 35 formed on each end Figure 3 is aV horizontal cross sectional view of one cf the halves of the ring 301 A washer36 positive pressure type which have been' devel- 1l the articles of apparel or othermaterial from taken on line 3 3 of Figure 1; may be provided'between one of thelugs 32 and Figure 4 is a horizontal cross sectional View Vthe shoulder 37 of the bolts, and operating 105 taken online rfi-4 of Figure 1; and handles 39' are provided at the opposite ends of Figure 5 is a fragmentary cross sectional-view the bolts from those to which the nuts 34 are taken on line .5--5 of Figure 1; applied, forA the'purpose of rotating the bolts and Referring particularly to Figurelof the Vdrawcontracting the 'split ring T30, whereby Athe ings, itV will seen that the improved prescylinder 11 is'lfirmly `clamped-'in lits relatively `110 adjusted positions with respect to the power cylinder head 17.

'I'he upper rim of the extractor 'cylinder 11 is flared outwardly similarly to the bottom flanges 27 as at 40, and the annular member 41 is secured to the cylinder 11 immediately below the flange 40. The annular member 4 1 is provided with the laterally extending hinge plate 45 provided with the side anges 46 and the outer end flange 47. A drain opening 48 is provided inthe plate 45 at its junction with the annular portion l of the member 41. Upstanding lugs 50 are provided on the flanges 46 and are perforated as at 51 for the reception of a pintle member 52.

A cover 55 is provided 'for the 'extractor cylinder 11 and is preferably formed with a concave undersurface which is provided with4 the hat marginal rim portion 56 adapted to contact with the flange 40 when the cover is in closed position. The cover 55 has. a laterally extending hinge plate 57 which is provided with the downwardly'projectingf lugs 58 through openings in which the 'pintle 52l is adapted to extend. It

. will be readily seen that the hinge plates 45 and 5,7, togethe'rwith the pintle 52 provide means for pivotally raising thecov'er 55 from the cylinder 11. v u

The cover has av depending flange 60 which is provided with the inwardly opening groove 61 which is adapted to receive the expansible locking ring 62. The annular member 41 which surrounds the upper .end ofthe extractor cylinder 11 Ais provided with the outwardly facing groove 63 into which the expansible locking ring is adapted to move (when it is contracted to lock the cover 55 in closed'po'sition on the cylinder 11.

will be readily seen in Figure 1 fof the drawings, .the locking ring 62 is adapted to'occupy a portion f both the'grooves 61 and 63 when in locked position'.

Thev ehds`65of thev locking ring 62 are bent and 'flared'utwardly asshown inligure 3 and areperforated for the receptionof the pins 66 which are adapted to pivotally secure the pairs of arcuate shaped. links 6.7 above and below the en'ds 65 offl the' ring'7 The'laterally extending plate 57 of the cover 55 is ,provided with the hcl- 1`W, boss`,70 ih which a Shaft.y 71 is adapted to rotate. An,operating handle 72 is adapted `to be secured to' me upper end ofthe shaftv 71' as. by

means of the peenedover upper endsV 73 ofthe r'ods 74 which are adapted to pass downwardly through thev drilled openings 75-ih the shaft. 71. The lowerends of the rods 74 are provided with the.enlargedfcylindric'al portions 77 whichY are adapted, to pass through openings in the inner ends` of each pair of` links` 67. The rods. 74 are provided with headsv 78 forretaining the lower links 6 7 iny position and the links are adapted to be spaced by means of Athe small sleeves 79V which areadapted to surround .the enlargedportions 77 of' thejodsj74.' Itwill thus bereadil'y seenthat by rotating the operating handle 72` to the position shown in Figures 1, 2 and 3, the looking ring 62.will bencontractedso as to move into the groove of the ring member 41 and. securingly lock the cover 55upon the upper end of the y cylinder 11. Inthis position the handle 72 abuts thesto'p, Soprovided on the boss 70', and when the'handlefi's', rotated until the opposite side thereof abutsthest'p 81', the ends65r of the Ylocking ring62fwill be. moved further apart andthe rings;Y 621. willbe expanded out of the groove 63 andtheco'lver Amay then be raised.

VJThe plunger 12 comprises essentiallyl the hollow shaft 85, the cup shaped head 86, and the piston member 87. The head 86 and the piston 87 ma-y be connected to the shaft 85 by means of Cotter pins 88.' A slight clearance space 90 is provided between the margin of the head 86 and the inner wall of the cylinder 11 through which the expressed liquid may pass during the operation of the device.

The piston member 87 is provided with the cup leather 92 which is secured to the margin thereof by means of the screws 93, and provides a fluid tight t between the piston 87 and inner sidejof the wall 15 of the power cylinder y10.

The mechanism for introducing the motive fluid to the power cylinder and exhausting 1t therefromV will now be described. An opening 95. isprovided in the wall 15 of the power cylinder v10 near the bottom thereof and a fitting 96 is applied to the outside of the wall at 'this point., A passageway 97 passes through. the ritting 96 and serves to connect the opening 95 with the nipple 98. A drain opening 99 is adapted to be stopped by the screw plug 100 in the lower part of the fitting 96. A combined l valve and double T connection 101 is provided with the internally threaded projection 102 which is adapted to be screwed onto the nipple 98. The member 101 is provided with the inlet and outlet hose connections respectively. A frustro-conical valve chamber 107 is provided in the member 101 and the wall of the valve chamber is provided with openings 108, 109, and

threaded ends 104'and 105 for the reception of fwhich communicate respectively with the inlet passageway of the member' 101, the tting 96, and the outlet or drain passageway 112 of the member 101. The three-way valve chamber 107 is provided with the rctatable'valve member 115 which is adapted to be securedtherein f by means of the nut 116 threaded uponthe projecting end 117 and bearing upon the washer 118 all as clearly shown in Figure l. The valve body 115 is hollow and is provided with'the two openings 120 and 121 spaced 90 apart and adapted to place'the openings 108 and 109, or 109 and 1 10 alternatively in communication with each other. It will be readily perceived that when the openings 108 and 109 are placed in communication the pressureY fluid will be permitted to ow from the inlet end of the member 101 through the valve and the fitting 96 into the power cylinder beneath the piston 87 and cause the plunger 12 to rise in the extractor cylinder. When the valve is rotated so that the openings 109, 110 are placed in communication,

the pressure fluid in the power cylinder is permitted to flow therefromthrough the exhaust passageway 112 of the member 101 and the plunger is permitted to descend.

A vertically arranged valve operating shaft l 131 by which the valve is operated. The handle' J 131 may be secured to the member 127 as by means of the screw 133 and washer 134. The hub132'of the handlev 1317is provided with the projection 136 whichis adapted to abut the stops 137 and 138 formed on the bracket 129 whenthe4 valve 115 is in exhaust and admission positions, respectively.

In the operation ofthe extractonthe extraee tor cylinder 11 'iswithdrawn from the power cylinder 10, preferably `until the abutment ring `25 engages `the inner margin of the opening 20,Y

and the clamping ring 30 is contracted to iirmly grip and retain the cylinder 1l in' its extended position. The plunger 85 is, of course, initially in the position shown in Figure 1 and when the extractor cylinder 11 isextended, the pressure head'86 of the plunger will beat the bottom of thecylinder 11. The cover 55` of the extrae-i tor cylinder is then raisedland the material from which the liquid is to be expressed is placed within the cylinder l1 so as to restvupon the pressure head 86. i `The cover 55. is then secured in placev upon the top. of the extractor cylinder 11 by the operation of thevhandle` 72 which, as has been described,"causesfthe locking ring 62 to engage the annularmember V41 of the cylinder 11. The valve 115-is then rotated by means of the handle 131 to admit fluid pressure to the power cylinder beneath the piston 8,7. This, of course, `causes the plunger S5 to `rise and thematerialf in the cylinder 11 will be compressed'between the concave surfaces of the cover and the pressure head 86. The'expressed liquid will flow through the clearance space 90 between the margin of the pressure head 86 and the' wall of the cylinder 11 and from thence into the power cylinder 10 above the piston 87. vAny liquid which may fall upon the top of the extractor apparatus will flow through the openings 140 in the cylinder head 17 and also be accumulated in this portion of the powercylinder. This waste liquid may be drained from the power cylinder through the opening 141 which isconnected by the fitting 142 and the vertical pipe 143 to the member 101 whence it is adapted to `ilowthrough the outlet end 105.

When the liquid is extracted from the material in the cylinder 11, the valve 115 is turned'to exhaust vposition to release thef` pressure, the cover 55 is raised, and the pressure again ap? plied beneath the piston 87 whereupon the plunger 85 will force the extracted material out at the top of the Vcylinder, 11. This movement of, the plunger also serves to elevate the waste liquid in the power'cylinder 'so thatit may flow out through the opening 141 .as previouslydescribed. Then the valve is turned toreleased position and the plunger 85 is permitted to descend.

In order to avoid marking or injuring a bath tub or other receptacle when the extractor is lused therein and to deaden the noise Vand absorb shocks incidental to transporting thefextractor, an annular base member 145 is provided which is preferablyjconstructed of rubber or a similar durable resilient material and is provided with the inwardly projecting flange 146 andthe side wall 147. The sidewall 147 is extended outwardly as Vat 148 to enclose the fitting 96 and is perforated as at 149 to afford access to the drain plug 100.

Although any convenient source of `pressure or motive fluid may be placed in communication with the inlet end 104 of the member 101, it is preferred to employ thel ordinary city 'water `as the,v motive fluid which, at, a pressure of pounds per square inch a 10 inch' power cylinder would yield a pressure of 240 pounds to the squareginch upon the. material in an extractor-.cylinder offa diameter of 5 inches. n Finally,1when the.extractingfoperations are completed, the extractor may again be collapsed byV releasing theclamping ring 30 and causing `the cylinder 11 to telescope with the power cylinder 10 andzagain assume theV position shown in Figure l, whereuponthe clamping ring 30 may again be .tightened to retain the cylinders in this collapsed position.

The term collapsible as employed in the vfollowing claims isv intended to mean capable of being, by design or intention, reduced to a more compact form as for convenience in transportationA or storage, and has no application to Ianyphase of operationv of the device in performing its pressing or extractingv functions.

Having thus;described the invention, what ,is claimedas new and desired to be secured by Letters Patent is:

1. In a` pressure extractor of theclass de; scribed,` in combination, a power cylinder, an extractor cylinder, one endof said power cylinder being Vprovided with an opening adapted to slidingly receive said extractor: cylinder, a split vcollar carried by the rim of said opening and adapted to be contracted to firmly grip and retain said extractor cylinder retracted positions. V 2. InV a .pressure extractor of the class de.- scribed, inV combination, a power cylinder, an

extractor cylinder, the head of the power cylin-V der' being provided with an opening in which said extractor cylinder is adapted to be slidingly received, outwardly extending iianges provided at the top and bottom of said extractor cylinder for limiting the inward and outward movements respectively of said extractor cylinder,` and clamping means associated with the margin of said opening for locking said cylinders in adjusted .relative positions.

3. A pressure extractor for laundry purposes or the like, comprising, in combination, an extractor cylinder;la power cylinder, and aplunger, a pressureV head formed on said lplunger and adapted to reciprocate in saidl extractor cylinder, and a piston formed on said plunger .and adapted Vto reciprocate in said power cylinder, said power and extractor .cylinders being of different diametersV and relatively movable, one within the other,y for the purpose of .collapsing the extractor as for transportation orstorage.

4. In`a pressure extractor of the class described, in combination, a power cylinder, an extractor cylinder telescoping within saidpower cylinder, and lmeans for locking said cylinders in adjusted positionsrelative to each other.

5. In a pressure extractor of the class described, iri combination,a vpower cylinder, an

extractorcylinder, and a plunger, the head of 'the power cylinder. being provided Ywith a central opening in which said extractor cylinder is adapted ,to beA slidingly received, an Vannular' member adapted' tosurround the upper margin of said extractor cylinder and to provide an abutment for limiting the 'movement of said extractor cylinder into said power cylinder, a

cover for said extractor cylinder, hinge elein extended andV opening in` which. said extractor cylinder is adapted toE be slidingly received. an annular member adapted to surround! the' upper margin of said extractor cylinder! andi to: provide an abutment for limiting the-movement of said; extractor cylinder into said power cylinder, a cover' for said extractor. cylinder, hinge elements carried by said annulary member. and saidV cover, and apintle connecting saidelements .for pivotal movement, and means for locking said cover in close'dl position..

'7.In a pressure extractor of the class de'- scribed, in combination, a power cylinder, an extractor cylinder, anda plunger, the headof the power cylinder being provided with a central opening in which said extractor cylinder is adapted to be slidably received, an annular member adapted to surround ther upper 4margin of saidextractor cylinder and to provide an vse abutment for limiting the movement of said extractor cylinder into said power. cylinder, a cover for said extractor cylinder, hinge elements carried by said. annular member and said cover, and a pintleconnecting said elements for pivotal movement, means associatedfwith said annular member for locking said cover, and a head on' saidplunger adapted -to reciprocate in said extractor cylinder, said Yhead and said cover being provided with cooperating concave faces between` which material maybe compressed to retract the liquidtherefrom.

8. In a pressure extractor of the class described, in combination, a power cylinder, the head ofV which is provided with a central opening, an extractor cylinder adapted to be slidingly received within said opening, a plunger, ahead on said plunger which is adapted to reciprocate with a marginal clearance within said extractor cylinder, and to cooperate with the outerclosed end of the extractor cylinder to compress the material fromwhich theliquid is to be extracted, a piston on one end of said plunger adaptedto reciprocate within said-power cylinder, .and means for controlling the admission ofV pressure fluid to said power cylinder to actuate said plunger.

9. In a pressure extractor of the class described, in combination, a power cylinder, the .head of which is provided with a central opening, an extractor cylinder adaptedl to be slidingly received within said opening, a plunger,

.ai head on said plunger which is adapted to reciprocate within said extractor cylinder, and to cooperate with the outer closed end of the extractor cylinder tov compress the material from whichthe'liquid is to be extracted, a clearance space being provided between the margin of said plunger head and the wall of said extractor cylinder through which the-expressed liquid mayv pass, a piston on one end of said plunger adapted toreciprocate within. said power cylinder, means `for controlling the admission of pressure fluid to said power cylinder to actuate said plunger, the inner end of said extractor cylinder being provided with an opening through which the liquid. expressed from saidmaterial throughsaid clearance space is adapted topass -into said power cylinder, and means for draining said liquid from said power cylinder.

10.In a pressure extractor of the class described, in combination, a powerV cylinder, the head ofy whichis provided-with a central-.opening, an Aextractor cylinder adapted to be slid- Aingly..` received `within said opening, a. cover `adaptedto be'applid to the-outer yend of said Lasciate extractor` cylinder; a plunger, a head on said plunger which is adaptedtofreciprocate within said .extractor cylinder and to cooperate with said cover toY compress the material fromwhich the liquidis to, be extracted, the cooperating faces. of. said cover and said head being Aconcave, a: slight marginal clearance space being provided between saidplunger head and the wall of said extractor cylinder through which the expressed liquid may pass, a piston on one end of said plunger adapted to reciprocate within said power cylinder, meansfor control-` ling the admission of pressure fluid to said power cylinder to actuate said plunger, the inner end of said extractor cylinder being open whereby said liquidY may pass to said power cylinder upon the outer side of said piston, said head and other por-tions of said extractor being provided with drainage openings for collecting waste liquid in the same space within the power cylinder, and means for draining said liquid from said power cylinder.

11. In a pressure extractor ofthe class described, in combination, a power cylinder, an extractor cylinder, and a. plunger having a head adaptedtoreciprocate within said extractor cylinder, and apiston adapted toreciprocate within said power cylinder, an opening inthe wall of said. power cylinder near the base thereof for the admission of a pressure fluid thereto beneath said piston, inlet and outlet connections applied to saidy power cylinder at said opening, a three-way valve controlling the flow of pressure fluid through said connections, a vvertical valve operating ro'd extending upwardly alongside of said power cylinder, a bracket secured to theupper portion of said power cylinder and providing a bearing in which said rod is adapted to rotate, an operatinghandle on the upper end of said rod, and stops on saidv bracket against which saidY handle isadapted to abut in the opened and closed positions of said valves.

12. In a portable, collapsible pressure extractor of the class described, in combination, a power cylinder, Yan extractor cylinder, adapted to telescope Within said power cylinder when not in use, and a plunger having ahead adapted to reciprocate within said extractor cylinder anda piston adapted to reciprocate within said power cylinder, an opening in the wall of said power cylinder near the base thereof for the admission of' a pressure fluidr thereto beneath said piston, al three-way valve adjacent said opening and controlling the flow of pressure fluid"int'o and' out of said power cylinder, a valve actuating handle associated with ythe upper portion of said power cylinder, and operative connections" disposedv adjacent the wall of said' power cylinder between saidv handle and said valve.

13. Acollapsible pressure extractor for laundry purposes or the like comprising incombination, a power cylinder and an extractor cylinder telescoping within said powerv cylinder, the outer Vend' portions ofA each of said cylinders forming the extremities of the extractor device.

14l .A collapsible pressure extractor for laundry purposes or the like comprising in combination, av power cylinder, an extractor cylinder telescoping within said power cylinder, the outer endportions of each of said cylinders forming the extremitiesof thedevice, vmeans for retaining said cylinders in an expanded'condition and means for releasing said retaining means so the extremities of the extractor device at all times.

16. AA portable collapsible pressure extractor unit comprising, in combination, a power cylinder, an extractor cylinder telescoping within said power cylinder, said cylinders being adjustable with respect to each other so Yas to vary the over-all length of said extractor unit, and a plunger member operatively associated with said cylinders.

WILLIAM J. ASHER. 

